Pump.



Ila/791,919. PATENTED JUNE 6, 1905. S. B. LBIDY, DEOD.

A. O. LEIDY, EXEOUTRIX.

PUMP.

APPLIOATION FILED MAILZ'Z, 1905.

2 SHEETS-SHEET 1.

1" Ira/013011 A 119791919. PATENTED JUNE 6, 1905. s. B. LEIDY, 1111911.

A. G. LEIDY, EXEOUTRIX.

PUMP.

APPLICATION FILED MAB..27,1905.

2 SHEETS-BHEET 2.

lllllllllllllllllllll fi UNITED STATES Patented Tune 6, 190 5.

PATENT OFFICE.

ALMIRA C. LEIDY, OF PHILADELPHIA, PENNSYLVANIA, EXECUTRIX OF SYLVESTERB. LEIDY, DECEASED; SAID EXECUTRIX ASSIGNOR TO THE ENTERPRISEMANUFACTURING COMPANY OF PENNSYLVANIA, OF PHILADELPHIA, PENNSYLVANIA, ACORPORATION OF PENNSYL- VANIA.

PUMP.

SPECIFICATION forming part of Letters Patent No. 791,919, dated June 6,1905.

Application filed March 27,1905. Serial No. 252,413.

To (all whont it Huty concern:

Be it known that SYLv'EsTER B. LEIDY, late a citizen of the UnitedStates, and a resident of Philadelphia, Pennsylvania, but now deceased,did during his lifetime invent certain Improvements in Pumps, of whichthe following is a specification.

This invention relates to certain improvements in pumps especiallyadapted for use in discharging molasses and like material from a barrelor other receptacle and simultaneously measuring the same.

The object of the invention is to so construct the pump that themechanism will be concentric with the pump-barrel, reducing the diameterof the pump-chamber and simplifying the construction. This object isattained in the following manner, reference be: ing had to theaccompanying drawings, in which Figure 1 is aview of the improved pumpin elevation. Fig. 2 is a vertical sectional view on the line 2 9., Fig.I. Fig. 3 is a vertical sectional View on the line 3 3, Fig. 4. Fig. 4:is a sectional plan view on the line 4: 4:, Fig. 2. Fig. 5 is asectional plan view on the line 5 5, Fig. 2. Fig. 6 is a detachedperspective view of the inner casing. Fig. 7 is adetached perspectiveview of the base. Fig. 8 is a detached perspective view of the plunger.-Fig. 9 is a detached perspective view of the blade.

A is the barrel of the pump, having at its upper end a head A, spout a,measuring-indicator a, and handle a, which is geared to a rod C,extending through the barrel and coupled to the plunger D within thecasing B, which is attached to the lower end of the pump-barrel A.

The casing B is reduced at its upper end and has an internalscrew-thread meshing with the thread on the barrel A. A base E issecured to the bottom of the casingB by screws or other fastenings andhas feet a, which elevate it, so that the molasses can flow through theinlet-passages e 6 into the pump-chamber. The main portion of the base Eextends into the casing and has a transverse slot 6 formed therein, inwhich is mounted a blade F, which does not rotate, but has a limitedlateral movement.

Mounted on the base E within the casing B is an inner casing B, securedto the base by screws or other fastenings and held central by a raisedportion 0 of the base. The base and inner casing form the pump-chamberin which the plunger D rotates, and inlet and outlet openingscommunicate with the chamber. The inner casing B forms an additionalhearing for the blade F, as well as the bearing for the plunger D. Theblade F, as shown in Fig. 9, is U-shaped, and the plunger acts againsttherounded surface of the vertical members of the blade, as shown inFig. 4E. The casing B has slots 6 b for the passage of the blade F, andeach slot is cut away at b, forming an outlet-passage from thepumpchamber. One passage 6 is on one side of the blade and the otherpassage 6 is on the opposite side of the blade. The space between theouter casing B and the inner casing B communicates with the interior ofthe pumpbarrel A. I

The plunger D is made in the peculiar form shown in Figs. 4 and 8, andin the present instance has three wings (Z cl (Z each having a roundedface and flat back, and in the upper end of the plunger is a squareopening (Z for the reception of the squared end of the rod C, so thatthe plunger must turn with the rod. As the plunger turns it reciprocatesthe blade F, and the wing cl will uncover the inletopening 6 allowingthe molasses to enter the space between it and the wing (IV. Themolasses will fill the space, and the rear wing (Z will gradually closethe inlet-opening 6 while the wing cl will uncover the outlet-opening 6,allowing the molasses to escape into the space between the two casings.

By using a plunger with three wings, as shown, and having two inlets andoutlets the pump will draw the molasses in a continuous stream.

A pump made in accordance with this invention is especially adapted foruse as a measuring-pump for such material as molasses, and it can bemade accurate at a reasonable cost.

Having thus described the invention of the said SYLV ns'rnr. B. LEIDY,what is claimed is 1. The combination in a pump, of a slotted casing anda base forming a pump-chamber and having inlet and outlet openings, awinged plunger in said chamber, a blade mounted in the casing andarranged to reciprocate as the plunger is turned, substantially asdescribed.

2. The combination in a pump, of an outer casing, a slotted inner casinghaving an out-letopening, a base having an inlet-opening therein, ablade mounted in the slotted inner casing, a plunger having one or morewings actuating the blade and arranged to cover and uncover the inletand outlet openings, substantially as described.

3. The combination in a pump,of a barrel, an outer casing securedthereto, abase secured to the outer casing, an inner casing attached tothe base and forming a pump-chamber, inlet-openings in the base andoutlet-openings in the inner casing, a sliding blade, a winged plungermounted within the pump-chamber and shaped to reciprocate the blade,substantially as described.

4. The combination in a pump,of a base having two inlet-openings thereinand having a transverse slot, an outer and inner casing secured to thebase, the inner casing having slots in line with the slot in the baseand having two outlet-openings, a blade arranged to slide in the slotsin the base and casing, and a winged plunger actuating the blade as itis rotated and so formed as to open and close the inlet and outletpassages, substantially as described.

5. The combination in a pump, of abase and a slotted casing forming apump-chamber, a reciprocating blade, inlet and outlet passagescommunicating With the pump-chamber, a plunger Within the pump-chamberand having Wings, each Wing having a rounded face and a flat back,substantially as described.

6. The combination in a pump, ofabarreha casing secured to the barrel, abase secured to the casing and having a transverse slot, and aninlet-opening on each side of the slot, an inner casing secured to thebase and slotted in line with the slot in the base, a U-shaped blademounted in the slots of the base and inner casing, the slots of theinner casing being enlarged on one side of the blade to formoutlet-passages, a winged plunger mounted within the inner casing, andmeans for rotating the plunger, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALMIRA C. LEIDY, Brawl/rim of the estate of Sgl loestm' B. Lez'dy,

(lace/(sad. \Vitn esses:

M. D. KonNIo, C. V. AsBURY.

